Dell laptop owners are the whole audience for the WD25TB4 Thunderbolt Dock, which supports dual 4K displays, fast USB-C charging, and a modular upgrade system. Laptop Mag, reviewing the previous-generation WD22TB4, praised that dock's 'unrivaled power delivery' and 'excellent performance,' and Mini PC Reviewer highlighted its 'sturdy design' and 'seamless integration.' Compatibility is restricted to Dell devices, and reviewers noted limited USB-A ports plus occasional coil whine. Professionals who want more connectivity out of a Dell machine will benefit; anyone on another brand or needing lots of legacy ports should look elsewhere.
Full review
All-black chassis reviewers likened to a stealth bomber
The Dell WD25TB4 Thunderbolt Dock presents a minimalist, understated design that prioritizes function over form. Laptop Mag's Rael Hornby, reviewing the previous-generation WD22TB4, called that dock's all-black chassis a 'stealth bomber' that blended into professional workspaces without drawing undue attention. The hard plastic construction, while not premium in texture, offers durability and sturdiness that aligns with its intended use as a background workhorse. The textured finish and stamped Dell logo provide a subtle brand presence. The dock features a power button with LED indicator located on the lid, and ports are arranged on the left and right sides for logical organization. Mini PC Reviewer noted the dock's 'sleek and modern' aesthetics, which complemented their workspace without being obtrusive, though they did observe that the design lacks the premium feel of higher-end competitors.
Port Selection and Connectivity
The WD25TB4 delivers a robust array of connectivity options, including two Thunderbolt 4 downstream ports, which enable daisy-chaining of additional peripherals. The dock supports up to four external displays at 4K resolution with 60Hz refresh rates, a significant upgrade from previous generation docks like the WD22TB4. It includes two DisplayPort 1.4 outputs, one HDMI 2.1 port, and one USB-C DisplayPort 1.4 Alt Mode port, providing flexibility for various display setups. The dock also features four USB-A 3.2 ports, one USB-C 3.2 port with 15W power delivery, and one USB-C 3.2 port with 7.5W power delivery. However, the limited number of USB-A ports has been criticized by some reviewers, such as the Mini PC Reviewer, who noted that the dock's USB-A port count may be insufficient for users with legacy devices. Additionally, the dock lacks an SD/micro SD card reader, a feature missing from the WD22TB4 as well, which was noted by both Laptop Mag and Mini PC Reviewer as a limitation for users who rely on card-based workflows.
Performance and Power Delivery
In terms of performance, the WD25TB4 excels in delivering fast and varied port selection, with support for up to 130W charging for compatible Dell laptops, as confirmed by the official Dell website. The dock's power delivery capabilities are consistent with its Thunderbolt 4 architecture, providing reliable charging for Dell devices. Mini PC Reviewer emphasized the fast USB-C charging support with SuperBoost technology, which reduces downtime by enabling quick charging for multiple devices simultaneously. However, the dock's performance is limited when used with non-Dell laptops, which DockSelector notes are capped at 96W charging. While it meets expectations for Dell laptops, performance may degrade under sustained high-power usage. The dock also supports Gigabit Ethernet connectivity, which is a notable upgrade over older docks, and the inclusion of 2.5GbE networking is particularly valuable for users who require faster network speeds, as noted by DockSelector.
Display Support and Multitasking
The WD25TB4 supports dual 4K displays at 60Hz, which is a significant improvement over the WD22TB4, which had more limited display capabilities. According to DockSelector's comparison, the newer dock supports up to four 4K displays at 60Hz with Display Stream Compression (DSC) enabled, making it ideal for demanding multitasking environments. The dock's DisplayPort 1.4 and HDMI 2.1 support ensure compatibility with modern displays and reduce handshake issues when mixing HDMI and DisplayPort outputs. Mini PC Reviewer noted that the dual 4K display support greatly boosted productivity, making data analysis and virtual meetings more efficient. However, the dock's display performance is constrained by the host laptop's GPU and operating system capabilities, especially on macOS, as DockSelector points out. The dock's ability to handle multiple displays is a standout feature for professionals and content creators who require high-resolution visuals and seamless multitasking, but it is not without limitations for users with older or less powerful systems.
Modular Design and Upgradability
One of the most praised features of the WD25TB4 is its modular design, which allows for easy upgrades and component replacement. The dock supports the WD22TB4 Module for existing Dell docking stations, enabling users to upgrade their current docks without purchasing an entirely new system. Mini PC Reviewer emphasized the swappable module feature, which guarantees the dock remains relevant as technology advances. The modular design also allows users to adapt to evolving needs by simply swapping out modules, which is a significant advantage for those who want to keep up with the latest technology trends. However, this modular approach is limited to Dell devices, and compatibility with non-Dell laptops is restricted. The dock's modular nature is particularly beneficial for IT teams managing fleets of devices, as noted by docking-stations.info, whose review covers the enterprise SD25TB4 sibling rather than this dock and credits it with remote management through Dell Device Management Console.
macOS charging capped at 96 watts
Despite its many strengths, the WD25TB4 has several notable drawbacks. The most significant limitation is how much of the dock is Dell-only: full 130W charging, Power Button Sync and Dell's management features all require a Dell host, which restricts its appeal to users outside the Dell ecosystem. The dock's lack of an SD/micro SD card reader, as noted by Mini PC Reviewer, is a missed opportunity for users who rely on card-based workflows. Additionally, the limited number of USB-A ports may inconvenience users with legacy devices, as pointed out by Mini PC Reviewer. The dock's performance under sustained high-power usage is also a concern; the dock may experience throttling under certain conditions. Furthermore, charging power is capped at 96W on non-Dell laptops including MacBooks, as DockSelector documents, and advanced features such as Power Button Sync require a Dell host. The absence of a built-in audio jack or card reader also forces users to rely on external adapters, which can be cumbersome for some workflows.
Built for Dell laptops with 130W charging
The WD25TB4 Thunderbolt Dock is best suited for Dell laptop users who require extensive port expansion and high-performance connectivity. It is ideal for professionals who rely on dual or quad 4K displays for productivity, content creators, and IT teams managing fleets of Dell devices. According to DockSelector, the dock is a strong choice for users who plan to use 4K or ultrawide monitors and want faster USB and Ethernet speeds. The dock's modular design and support for up to 130W charging make it particularly valuable for Dell Precision, XPS, and Latitude laptops. However, it is not recommended for users with non-Dell laptops, as the charging capabilities are capped at 96W, or for those who need an SD card reader, as the dock lacks this feature. The dock's limited support for macOS users and the absence of a built-in audio jack also make it less appealing for general consumers or users with mixed device ecosystems.
100 dollars cheaper than the CalDigit TS4
When compared to other Thunderbolt 4 docks, the WD25TB4 offers a compelling balance of features and performance. The dock is priced competitively at $299, which is $100 less than the CalDigit Thunderbolt Station 4, yet it retains premium features such as support for up to four 4K displays at 60Hz, two Thunderbolt ports, and a decent mix of USB ports. However, the WD22TB4, while older, still offers a viable option for users who already own one of the older models and it works well for standard office setups. The SD25TB4, the enterprise-focused version, shares the same hardware as the WD25TB4 but adds features like remote firmware updates and cloud-based management, which are valuable for IT teams but not for individual users. While the WD25TB4 performs well in most scenarios, the SD25TB4's enterprise features are only beneficial for large-scale deployments. Overall, the WD25TB4 strikes a good balance between performance, features, and price for most users, though the SD25TB4 may be preferred for IT-managed environments.
Strengths
- +Supports dual 4K displays at 60Hz for enhanced multitasking and productivity
- +Fast USB-C charging with SuperBoost technology reduces downtime
- +Modular design allows easy upgrades with swappable modules for future technology
- +130W power delivery for Dell laptops with reliable charging performance
Watch-outs
- −Full 130W charging and Dell-specific features need a Dell laptop; other Thunderbolt 4 hosts are capped at 96W
- −Only two USB-A ports available, which may be insufficient for some users
- −Some users reported coil whine noise under specific conditions
How it compares
The Dell WD25TB4 excels in dual 4K display support and SuperBoost charging but is limited to Dell devices, unlike the CalDigit TS4 which supports any Thunderbolt laptop. While it offers a modular design that the Anker 563 lacks, it only provides two USB-A ports compared to the Anker's more extensive port selection. The UGREEN Revodok Max surpasses it in Thunderbolt 4 performance and build quality, though the Dell dock offers better integration with Dell laptops and more reliable power delivery.
Rating sources
“Overall, the dock is a worthwhile investment, balancing premium features and performance against its $299 price tag, despite some compatibility issues with older devices.”
“If you're buying new in 2025, start with WD25TB4 and only look elsewhere if you have a specific reason.”
Our 4.3 score is the average of the 2 scored reviews above; 2 more reviewed it without printing a score and are not in the average. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
